Six new species of Triomicrus Sharp from southern China (Coleoptera: Staphylinidae: Pselaphinae) Author Shen, Jia-Wei Author Yin, Zi-Wei Author Li, Li-Zhen text Zootaxa 2015 4044 4 585 595 journal article 10.11646/zootaxa.4044.4.8 7d9d3b09-1779-4e0f-ad94-277bf5234eac 1175-5326 239650 86157EC0-0482-4B83-97DF-946065B7A04A Key to southern Chinese Triomicrus based on males 1 Elytral subhumeral sulci absent.......................................................................... 2 - Elytral subhumeral sulci present......................................................................... 6 2 Mesotibia with spur.................................................................................... 3 - Mesotibia lacking spur................................................................................. 5 3 Protibia lacking protuberance............................................................................ 4 - Protibia with small apical protuberance ( Fig. 7 E); mesotibia with curved apical protuberance ( Fig. 7 D); apical lamina of abdominal sternite VII transverse, pointed at apex of lateral margin ( Fig. 7 F, 7G). (Southern China : Guangxi).............................................................................. T. cf . punctifrons Löbl, Kurbatov & Nomura 4 Mesotibia with long acute apical spur ( Fig. 1 E); pronotum entirely, densely and coarsely punctate ( Fig. 1 A); apical lamina of abdominal sternite VII transverse, rounded at apex of lateral margin ( Fig. 1 D). (Southern China : Guangdong).......................................................................................... T. acutus Shen and Yin , sp. n. - Mesotibia with large triangular apical spur ( Fig. 3 D); pronotum entirely, densely and coarsely punctate ( Fig. 3 A); apical lamina of abdominal sternite VII narrowed near base, widest at apex ( Fig. 3 E, 3F). (Southern China : Guangdong, southern Hunan and Guangxi)................................................................ T. cochlis Shen and Yin , sp. n. 5 Head with median vertexal carina ( Fig. 2 A); pronotum partially, finely and sparsely punctate ( Fig. 2 A); apical lamina of abdominal sternite VII narrowed near base, widest near middle, posterior margin obliquely narrowed ( Fig. 2 D). (Southern China : Guangxi)................................................................ T. cavus Shen and Yin , sp. n. - Head lacking median vertexal carina ( Fig. 6 A); pronotum entirely, densely and coarsely punctate ( Fig. 6 A); apical lamina of abdominal sternite VII widest near base, posterior margin obliquely narrowed, pointed at apex ( Fig. 6 D). (Southern China : Guangdong and southern Hunan)................................................ T. pinnatus Shen and Yin , sp. n. 6 Head with median vertexal carina ( Fig. 5 A); pronotum partially and finely punctate ( Fig. 5 A); apical lamina of abdominal sternite VII composed of two sclerites, left one narrowed near base, rounded at apex of lateral margin, right one relatively small ( Fig. 5 D). (Southern China : Guangdong)....................................... T. nanlingensis Shen and Yin , sp. n. - Head lacking median vertexal carina ( Fig. 4 A); pronotum smooth ( Fig. 4 A); profemora swollen ( Fig. 4 A); apical lamina of abdominal sternite VII composed of two sclerites, each curved mesally ( Fig. 4 D). (Southern China : Guangxi).......................................................................................... T. longus Shen and Yin , sp. n.